18880394601 has 16 divisors (see below), whose sum is σ = 26521874240. Its totient is φ = 11914076160.

The previous prime is 18880394567. The next prime is 18880394641. The reversal of 18880394601 is 10649308881.

It is not a de Polignac number, because 18880394601 - 2¹⁸ = 18880132457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18880394641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77920 + ... + 209361.

It is an arithmetic number, because the mean of its divisors is an integer number (1657617140).

Almost surely, 2^18880394601 is an apocalyptic number.

It is an amenable number.

18880394601 is a deficient number, since it is larger than the sum of its proper divisors (7641479639).

18880394601 is a wasteful number, since it uses less digits than its factorization.

18880394601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288456.

The product of its (nonzero) digits is 331776, while the sum is 48.

The spelling of 18880394601 in words is "eighteen billion, eight hundred eighty million, three hundred ninety-four thousand, six hundred one".